# MATH

posted by .

Coach Johnson is 10 years older than Tim. When Tim started football 3 years ago, Coach Johnson was twice his age. How old is Tim now?

• MATH -

Tim's current age -- x
coach's current age -- x+10

3 yrs ago, Tim was x-3
3 yrs ago, coach was x+7

(x+7) = 2(x-3)
x+7 = 2x - 6
13 = x

Tim is now 13

check: if Tim is 13, then coach is 23
3 years ago, Tim was 10 , coach was 20
Yes, he was twice as old then!

• MATH -

Tim would be 13 years old now coach johnson is 23 now

## Similar Questions

1. ### algerbra

mrs. johnson is 3 times as old as her son. ten years agoe she was 5 times as old as her son was then. what is the two equations for this problem?
2. ### math

Coach Johnson is 10 years older than Tim. When Tim started football 3 years ago, Coach Johnson was twice his age. How old is Tim now?
3. ### math

A. Brad is 12 years older than Sam . If Brad were 8 years older than he is now. he would be twice as old as Sam. How old is Sam now?
4. ### math 7 accelerated

Yanira is 3 years older than Tim and twice as old as Hannah. Tim is 2 years older than Hannah. How old are Yanira Tim and Hannah?
5. ### math

Yanira is 3 years older than Tim and twice as old as Hannah. Tim is 2 years older than Hannah. How old are Yanira Tim and Hannah?
6. ### algebra

Ten years from now Tim will be twice as old as Jane was when mary was nine times as old as tim. Eight years ago, Mary was half as old as Jane will be when jane is one year older than Tim will be at the time when Mary will be five times …
7. ### functions

Andrew is 5 years older than Tim. Tim is aged 19. Write an equation for x, where x is the age of Andrew. Solve the equation.
8. ### math

Aiden is 12 years older than Tim. Mical is 4 times older than Tim.
9. ### Grammar

Re-write the paragraphs adding pronouns such as "he," "they," etc. Tim and Paul love to go to the pool. Tim and Paul's favorite thing to do is swim laps. Tim likes to do the backstroke. Tim collects all the posters of famous swimmers …
10. ### Math

Steve is 3 years older than Tim and twice as old as Hannah. Tim is 2 years older than Hannah. How old are Steve,Tim and Hannah?

More Similar Questions